LGOGDownloader is an unofficial downloader to GOG.com for Linux users. It uses the same API as the official GOG Galaxy. The new version 3.18 has just been released.

LGOGDownloader 3.18 Added support for TOTP Better handling of corrupted files with –galaxy-install Checks chunk hash after chunk download finishes and retries on corrupted transfer Better handling of duplicate file entries when installing game using –galaxy-install Duplicate files from DLCs overwrite base game versions If there are multiple DLCs that have duplicate files then the last entry parsed wins Sort Galaxy builds by date and branch Some games have compatibility branch builds which may be listed first in the API response These builds are probably not what most users want to install by default when using –galaxy-install Deprioritize all branches and deprioritize “compatibility” branch even more Fixed building with Boost 1.89.0 (Patch by: Michael Cho) Gracefully fail when $HOME is unset (Patch by: nydragon) Added option to select between SI and IEC units –unit-format Default is IEC units https://github.com/Sude-/lgogdownloader/releases/download/v3.18/lgogdownloader-3.18.tar.gz